TJA1022TK,118

NXP  TJA1022TK,118  芯片, LIN 收发器, AEC-Q100, HVSON-14 新

Overview

The TJA1022 is a dual LIN transceiver that provides the interface between a Local Interconnect Network LIN master/slave protocol controller and the physical bus in a LIN network. It is primarily intended for in-vehicle subnetworks using baud rates up to 20 kBd and is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A and SAE J2602. The TJA1022 is pin compatible with the TJA1020, TJA1021 and TJA1027. The TJA1022 and TJA1027 are also software compatible.

The transmit data streams generated by the protocol controller are converted by the TJA1022 into optimized bus signals shaped to minimize ElectroMagnetic Emissions EME. The LIN bus output pins are pulled HIGH via internal termination resistors. For a master application, an external resistor in series with a diode should be connected between pin VBAT and each of the LIN pins. The receivers detect receive data streams on the LIN bus input pins and transfer them via pins RXD1 and RXD2 to the microcontroller.

Power consumption is very low when both transceivers are in Sleep mode. However, the TJA1022 can still be woken up via pins LIN1/LIN2 and SLP1_N/SLP2_N.

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## Features

### General

* Two LIN transceivers in a single package

* LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A and SAE J2602 compliant

* Baud rate up to 20 kBd

* Very low ElectroMagnetic Emissions EME

* Very low current consumption in Sleep mode with remote LIN wake-up

* Input levels compatible with 3.3 V and 5 V devices

* Integrated termination resistors for LIN slave applications

* Passive behavior in unpowered state

* Operational during cranking pulse: full operation from 5 V upwards

* Undervoltage detection

* K-line compatible

* Available in SO14 and HVSON14 packages

* Leadless HVSON14 package 3.0 mm × 4.5 mm with improved Automated Optical Inspection AOI capability

* Dark green product halogen free and Restriction of Hazardous Substances RoHS compliant

* Pin-compatible with the TJA1020, TJA1021 and TJA1027

* Software-compatible with the TJA1027

### Protection

* Very high ElectroMagnetic Immunity EMI

* Very high ESD robustness: ±8 kV according to IEC 61000-4-2 for pins LIN1, LIN2 and VBAT

* Bus terminal and battery pin protected against transients in the automotive environment ISO 7637

* Bus terminal short-circuit proof to battery and ground

* Thermally protected

* Initial TXD dominant check when switching to Normal mode

* TXD dominant time-out function

## Features